Bitemark46

I was gonna throw some ET Streets on the wifes car to see what it does. But from watching videos of M6's cars on here and doing searches for 9" and 12 bolts I'm starting to get gun shy about doing it. Her car doesn't make much power 300-310rwhp. Am I risking it? Thanks. -Mark

EDIT: it has 3.42's

fastenough

iTrader: (36)

She'd prolly be fine if its stock still but don't go launching the **** out of it.

LilSlo1

iTrader: (3)

10 bolts behind a A4 usually last a little longer. I 've got a whole season on mine, and still have no problems. When the car was stock with a set of ET Streets it slowed the car down. I did put a girdle on the rear end to give it somewhat a chance of living. See mods in my sig for the Trans Am.

When I leave off idle the car will 60 foot mid 1.70's
Stalling it up as high as it will go (about 3400 rpms) 60 foot is high 1.60's to low 1.70's.

60 foot times
Four high 1.60's
Dozen low 1.70's
Too many to count 1.80's and slower

And still no noises or problems yet.

Magnet

iTrader: (36)

with the stock stall your not hitting the rear hard enough to break it IMO i have had many passes on nittos dead hookiff the line with stock stall and no noises or anything

Bitemark46

So a rear girdle huh? I'll have to pick up one. Don't know where to shop for bargain prices for the LS1... any good places?

Crawlin- you said you slowed down? Can you explain? Thanks. -Mark

FloydSummerOf68

iTrader: (1)

My 10 bolt has seen numerous 1.7s and now is taking high 1.6 60s.

I'm going to put a rear girdle on as well to try and help the life. Thunder racing has a decent price on them, and I think PFYC carries an SLP girdle.

Vintage Iron55

My Brother put a season on the 17 spline dropout 10 bolt in his 56 Chevy with Et Streets with 3800 stall. Those are notoriously weak under abuse, but he has not broken his. I broke the snot out of that type of rear end with my manual transmission, but the auto doesnt seem to be so hard on them. From my experience, the results of slicks on a stock car with a stock converter seem to be a bog off the line. Be sure NOT to use tires with a larger diameter than stock or the condition will worsen. This is due to taller tires having the effect of reducing the gear ratio. Go wider instead if anything.

Should be fun.

Henry

SiL3NtXWS6

iTrader: (17)

my friend broke 2 10 bolts on the street with street tires at 350whp... it's hit or miss

gator's 99TA

iTrader: (2)

mark you saw andy run 10.40s this weekend at BMP with a stock 10 bolt with 3.73 gears (weaker than stock). his best was 1.44 60'

i wouldnt worry about it too much. et streets will slow down a stock stall car.

Matt D

iTrader: (49)

I ran numerous 1.4X 60fts on a stock 10 bolt, 3.42s, & slicks with a 4600 stall. Stock stall won't hit as hard, so you have nothing to worry about.

Bitemark46

How? If it's the same OD how can it slow it down but a MT DR doesn't? I'm cornfused. -Mark

Magnet

iTrader: (36)

you get too much traction, go with nittos

daniel6718

iTrader: (36)

i been 1.5x as long as it has stock gears its alomst indestructable with d/r...coulple guys areound here with 3.23 and 3.42 cars are doing low 1.4x, most people you hear about breaking them either have gears, or are dumping the clutch with too much clack in the drivetrain...

Taubr Unit

iTrader: (32)

girdle that bad boy!! My buddy has a '02 TA on a 10 bolt with a girdle also. Launched it and broke a axle but everything was still held toghter with the girdle, gears were still perfect (4.10's). I think with moser axles and a girdle and a 10 bolt should hold up pretty good with a auto.

LilSlo1

iTrader: (3)

When my car was bone stock, it went faster on a street tire. The slicks actually slowed the car down. I guess mabey a little wheel spin at the tree might have acted like a small converter, compared to dead hooking with the slicks. It actually sounded like the slicks were bogging it down, but don't get me wrong the slicks kept the car consistant when it was stock.

But now street tires are not even a choice for the track since I put the converter and exhaust in.

Thats why i am leaving the stock 3.23 in my car. When and if the rear end breaks it will be time for a 12 bolt. I just put a girdle on it to give it a little chance, and mabey if I get 250 bucks burning a hole in my pocket I'll slide some axles in it....Yes I know its a waste of money.

FloydSummerOf68

iTrader: (1)

Does anyone know how much a girdle actually improves strength?

I dont know if there are any numbers out that would have a percentage increase in strength over stock...but if there are I would LOVE to see them.

And what about the TA girdle over the SLP girdle? I think SLP is cheaper....strength differences?

smokeum99ta

iTrader: (15)

I hate to be one to tell you but 10 bolt's ain't very strong. I've broke at the least a dozen 10 bolt's between two different cars (1 m6 & 1 a4). They would seem to survive until I put any kind of sticky tire on them. And this was when I was making under 400rwhp. But I have to admit I would launch hard every time just waiting to be trailered home.

Matt D

iTrader: (49)

I launched off a foot brake at 4000rpms on a full slick for two seasons on a 10 bolt. Never had a problem. But then again, my car only ran 10s...

Vintage Iron55

Bitemark46, to answer your question, the street tires with the same OD will spin and give you artificially lower "feeling" rear gears and allow your engine to turn rpm where it actually makes more torque, but wheelspin is seldome consistant. When you put hard gripping slicks on a stock car without a good converter the bogging effect is really that since the tires will not spin, you lug the engine at an rpm where it makes less torque and has less inertia. That is why people with the slicks use a looser converter and lower rear gears to allow the engine to hit the rpms where it makes good power. I know it sounds a little hard to beleive at first, but it's true if you think about it. Guys with manual transmissions will actually want the slicks to spin 1 to 1 1/2 rotation on launch for this reason. In a locked up drivetrain, something has to slip for the first 30 feet or so. Tires, clutch, both...

JUICED96Z

I have a low mile 10 bolt with 4.10's, stall, engine work, built tranny, suspension, bottle, ect ect, 28 inch tall 15X8 E.T. street. I am not worried about it but don't plan on launching hard lol